Bell-and-spigot joint for cement-lined pipes



(No Model.)

E. H. PHIPPS.. Y BELL AND'SPIGDT JOINT EUR CEMENT LINED PIPES. No. 474,779.

Patented May V10, 1892,.

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ns co7, maro `rraras IInrrnn FFICE@` EDXVARD I-I. PHIPPS, OF NEIV HAVEN, ASSIGNOR TO IHE CONNECTICUT PIPE MANUFACTURING COMPANY, OF VEST HAVEN, CONNECTICUT.

BELL-AND-SPIGOT JOINT FOR CEMENTMLINED PIPESI.

SPECIFICATION forming part of Letters Patent No. 474,779, dated May 10, 1892.

Application led Tuly 6, 1891. Serial No. 398,452. (No model.)

To @ZZ whom it may concern:

Be it known that I, EDWARD H. Pnirrs, of New Haven, in the county of NewIfIaven and State `of Connecticut, have invented a new Improvement in 'Bell-and-Spigot Joints for Cement-Lined Pipes; and I do hereby declare the following, when taken in connection with accompanying drawing and the letters of reference marked thereon, to be a full, clear, and exact description of the same, and which said drawing constitutes part of this specification, and represents a broken view, partly in section and partlyin elevation, of two pipesections provided with bell-and-spigot-joint members constructed in accordance with my invention.

My invention relates to bell-andspigot joints for cement-lined pipes, the object being to produce bell and spigot members of simple and effective construction.

With these ends in view my invention consists in a spigot member having a ring adapted to lit within the end of a pipe-shell and two beads respectively located upon the outer and inner faces of the outer edge of the said ring, and a bell member having a ring adapted to tit within the end of a pipe-shell, a flaring mouth shaped to form a shoulder for the exterior coating of the pipe to abut against, and a bead formed upon the inner face of the said head at the base of the flaring mouth thereof.

The sheet-metal pipe-shell A, the cement lining l5, the exterior cement coating C, and

the sheet-metal outer pipe-shell D are all of well -known construction and do not need special description.

The spigot member of my improved joint consists of a ring E, adapted to tit closely within a pipe-shell and having an annular bead F formed upon the outer face of its outer edge and a corresponding bead G formed upon the inner face of the said edge.

The bell member of my improved joint consists of a ring II, adapted to iit closely within a pipe-shell, a flaring mouth I, adapted to receive the spigot member of another pipe-section and having a shoulder J formed between it and the said ring, and a bead K formed upon the inner face of the said member at the base of the flaring mouth.

The rings E and I-I of the respective members adapt them to be fitted into the ends of the pipe-sections, while their beads Gr and K form shoulders to center the pipe when it is being lined and to protect the lining, which is ilush with them, when the pipes are being handled and also when they are in use. The shoulder .I of the bell member also provides an abutment for the exterior coating of cement applied over the pipe-shell A. As thus constructed the bell and spigot members are very easily applied, and not only assist in the application of the inner and outer coatings of cement, but also protect the same after the pipes have been finished.

It will be understood, of course, that after one of the spigot members has been introduced into one of the bell members the space in the open mouth of the latteris filled in with molten lead or some other material to form a tight joint.

I am aware that prior to my invention the respective members of bell-and-spigot joints for cement-lined pipes have been cast upon the outer faces of the ends of the pipe-sections. I do not, therefore,broadly claim bell and-spigot-joint members for cement-lined pipes, but only my particular construction, which, by locating the ring of the bell member within the shell of its pipe-section, permits an envelope of cement to be applied to the same and continued in full thickness to the exterior shoulder of the iiaring mouth of the said member, while the location of the ring of the spigot member within the shell of its pipe-section not only secures the maximum space for the sealing material-such as leadwithin the mouth of the bell member, but also leaves the said mouth open and readily accessible after the two members have been set together, none of the said advantages inni-ing to the prior construction.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is- I In a cement-lined pipe, the combination, with a pipe-shell, of a spigot member comprising a ring the exterior surface whereof is adapted to iit closely within one end of said shell and two beads respectively located upon the outer and inner faces of said ring IOO at the outer edge thereof, another pipe-shell, a bell member comprising a ringthe exterior surface whereof is adapted to iit closely within the said shell, a i'laring mouth having a shoul- 5 der formed between it and the said ring and an inwardly-projecting bead located at the base of said mouth, and coatings ot' cement enveloping the exterior surface of the said l shells, that on the shell containing the bell 1o member abutting against the shoulder thereof and that on the shell containing the spigot member being constructed to give clearance to the mouth of the bell when the two spigot members are brought together, substantially as described. I5

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

EDW. H. PHIPPS. Witnesses:

FRED C. EARLE, JOHN E; EARLE. 

